ST7538 Datasheet | STMicroelectronics

DESCRIPTION The ST7538 is a Half Duplex synchronous/asynchronous FSK Modem designed for power line munication network applications. It operates from a single supply voltage and integrates a line driver and a 5V linear regulator. The device operation is controlled by means of an internal register, programmable through the synchronous serial interface. Additional functions as watchdog, clock output, output voltage and current control, preamble detection, time-out, band in use are included. Realized in Multipower BCDV technology that allows to integrate DMOS, Bipolar and CMOS structures in the same chip. s s s s s s s s BLOCK DIAGRAM DVdd AVdd DVss AVss TEST1 TEST2 TEST3 BU Rx Fo CD/PD CARRIER DETECTION TEST BU AGC Rx D CLR/T PLL DIGITAL FILTER FSK DEMOD IF FILTER FILTER AMPL RAI SERIAL INTERFACE REG/DATA Rx Tx Tx D FSK MODULATOR DAC TX FILTER ALC VOLTAGE CONTROL PLI Vsense ATO ATOP1 ATOP2 + VREG PAVcc Vdc PG XOut XIn WD TOUT RSTO MCLK ZCin ZCout C_OUT CMINUS CPLUS D03IN1407 FILTER CONTROL REGISTER CURRENT CONTROL CL REGOK TIME BASE OP-AMP September 2003 1/30 PIN CONNECTION (Top view) REG_DATA C_MINUS REG_OK C_PLUS C_OUT TEST1 N.C. N.C. N.C. 34 33 32 31 30 29 28 27 26 25 24 23 CD_PD DVSS RXD Rx Tx TXD GND TOUT CLR/T BU DVDD MCLK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 VDC RAI RXFO TEST2 VSENSE AVDD XIN XOUT SGND ATO...